.spinner {
    margin: 100px auto;
    width: 20px;
    height: 20px;
    position: relative;
}

.container1>div,
.container2>div,
.container3>div {
    width: 6px;
    height: 6px;
    background-color: #333;
    border-radius: 100%;
    position: absolute;
    animation: bouncedelay 1.2s infinite ease-in-out;
    animation-fill-mode: both;
}

.spinner .spinner-container {
    position: absolute;
    width: 100%;
    height: 100%;
}

.container2 {
    transform: rotateZ(45deg);
}

.container3 {
    transform: rotateZ(90deg);
}

.circle1 {
    top: 0;
    left: 0;
}

.circle2 {
    top: 0;
    right: 0;
}

.circle3 {
    right: 0;
    bottom: 0;
}

.circle4 {
    left: 0;
    bottom: 0;
}

.container2 .circle1 {
    animation-delay: -1.1s;
}

.container3 .circle1 {
    animation-delay: -1.0s;
}

.container1 .circle2 {
    animation-delay: -0.9s;
}

.container2 .circle2 {
    animation-delay: -0.8s;
}

.container3 .circle2 {
    animation-delay: -0.7s;
}

.container1 .circle3 {
    animation-delay: -0.6s;
}

.container2 .circle3 {
    animation-delay: -0.5s;
}

.container3 .circle3 {
    animation-delay: -0.4s;
}

.container1 .circle4 {
    animation-delay: -0.3s;
}

.container2 .circle4 {
    animation-delay: -0.2s;
}

.container3 .circle4 {
    animation-delay: -0.1s;
}

@keyframes bouncedelay {

    0%,
    80%,
    100% {
        transform: scale(0.0);
    }

    40% {
        transform: scale(1.0);
    }
}